I buy through iTunes Spain, why can't I buy in itunes US?

sup fellas, I'm buying my music through iTunes Spain, and I wanna buy some stuff from the US itunes store, and everytime I click BUY, it says I can't buy in the US store, and sends me to the spain store.

iTunes stores are locked to your country via your credit card, the only way you can buy from the US store is to create a new account, assign to the the US store and buy some US itunes vouchers. I think it is also illegal and iTunes maybe able to work out where you are in the world by your IP. Its not worth the hassle.

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